The electricity went off in our neighborhood yesterday. It came back on. I do not run my central air this time of year so the air conditioner is in off position. My fan is on auto but this usually means it is also in off position. When the electricity came back on yesterday the fan came on (not the air conditioner) and is continually running. I cannot get this darn thing to shut off. I have looked on the internet and made serveral attempts to get this fan shut off. I do not want to pay for electricity we dont use nor have the fan run continuously when we do not need it. I reset my thermostat. Shut the air on then off to try to reset. What can I do?

Hello Sounds like runaway blower.The relay in the blower unit is stuck/welded & should be replaced.In the mean time you can turn off the service switch at the unit.If you tap the relay it will shut off (for now) untill the next demand and get stuck again.The relay can be of many types and locations ,trace the wires from the motor to a small box/cube and tap it to free it.

1 Suggested Answer

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.goodluck!

Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.

mcdevito75 here, Your A/C units control board is most likely transisterized or computer built, in which case when power went out so did the memory in your A/C control board. Simply shut down your A/C unit, re-start and make adjustments again for your comfort.

Replace motor fan and capacitor of the outside unit. it is a very simple task. Turn breaker OFF. Then all you have to do is remove about four screws from the top grill, about four more that fasten the motor fan assembly, unplugg electrical connectors and label them and install the new one and switch fan blades.

No special knowledge is required to perform this job. Cost: about $140 +-.

On the other hand, you call a HVAC technician, they supply the motor and capacitor, otherwise they won't give you warranty. Cost $300. Look on the Yellow Pages for one in your neighborhood.

Sounds like it cycles on either head pressure or low pressure. If you have a Carrier unit it has both controls. Is your outside fan running. Is your condensor dirty. A unit that old needs to checked bby a service tech. Remember freon does just go away. If he puts gas in your unit there is leak. HINT Ask for free estimate on repair before it is fixed. That way you know the cost up front. Rus

Most thermostats have a setting for the fan called, "manual". That keeps the fan on continuously. The electronic thermostats can fail in a "fan on" condition. That would require a new thermostat. I also saw one air conditioner with a fan relay welded "on" by electrical surge. That would require a new relay.